A marathon runner completes a race in 2 hours and 30 minutes. What is his averag

A marathon runner completes a race in 2 hours and 30 minutes. What is his average speed in km/h if the marathon distance is 42 km? (2022)

A marathon runner completes a race in 2 hours and 30 minutes. What is his average speed in km/h if the marathon distance is 42 km? (2022)

Step 1: Convert the time from hours and minutes to just hours. The runner completed the race in 2 hours and 30 minutes.
Step 2: To convert 30 minutes to hours, divide 30 by 60. This gives you 0.5 hours.
Step 3: Add the 2 hours to the 0.5 hours. So, 2 + 0.5 = 2.5 hours.
Step 4: Now, use the formula for average speed, which is distance divided by time. The distance of the marathon is 42 km.
Step 5: Divide the distance (42 km) by the time (2.5 hours). So, 42 km / 2.5 h = 16.8 km/h.
Step 6: The average speed of the marathon runner is 16.8 km/h.

Average Speed Calculation – The average speed is calculated by dividing the total distance traveled by the total time taken.
Time Conversion – Understanding how to convert minutes into hours is essential for accurate calculations.